asking for the system.pas the vcl.pas and the rtl.pas

Hello,

Hope someone can help me out here. After installing Delphi all is well. But
when i try to install my thirt party components Delphi stops runninnig
projects and keeps asking for the system.pas the vcl.pas and the rtl.pas

I have adde all to the search pad but no result.

Please help me out I cant work with Delphi anymore. I have tryed to install
it over and over but the same result.

T.I.A